Messages (Become)

Yes, let's go ahead with needed software.

You will need:

1. A good hex editor (I use UltraEdit https://www.ultraedit.com/downloads/ )

2. TunerPro http://www.tunerpro.net/ - normal version is enough for our purpose (not realtime)

3. You must have original binary either by reading it directly from your chip using the EPROM programmer or by downloading it from internet (first choice it is best because it will retain original serial numbers but the downloaded ones will work too)

4. Find the .xdf file for your specific bin - this is a definition file which translate the data from the .bin into a human readable form like scalars, tables (maps).

For no 3 and 4 a good start is http://www.tunerpro.net/downloadBinDefs.htm#BMW and other chip tuning enthusiast forums.

For my specific engine ecu 0261 200 950 I could not found the exact xdf but I was lucky to find the .xdf for a newer software version (990) on the page above. BMW_990_318i_soft070.xdf. Tip: search for last 3 digits written on the label just under BOSCH brand 0261 200 950 in my case. I have found by trying that 990 version of software is working on ...950 ecu. 

That think is an aftermarket emission device. You can remove it but you might get trouble on technical inspection (check the regulations from your country).

also, what is this part? i seen no reference to it

That is a heater for the throttle body, same as part 3 from the same picture. It can work just fine without it. I had them both in my 318is E36.